Large Non-Gaussianity Implication for Curvaton Scenario

Details Large Non-Gaussianity Implication for Curvaton Scenario Large Non-Gaussianity Implication for Curvaton Scenario

2008-01-03

arxiv.org/abs/0801.0467v3

Phys.Lett.B669:260-265,2008

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 1 figure; minor clarification and refs added; version for publication in Phys.Lett.B

Scientific paper

10.1016/j.physletb.2008.10.013

We argue that the typical energy density of a light scalar field should not
be less than $H^4$ in the inflationary Universe. This requirement implies that
the non-Gaussianity parameter $f_{NL}$ is typically bounded by the
tensor-scalar ratio $r$ from above, namely $f_{NL}\lesssim 518\cdot r^{1\over
4}$. If $f_{NL}=10^2$, inflation occurred around the GUT scale.

Affiliated with

Also associated with

No associations

Rating

Large Non-Gaussianity Implication for Curvaton Scenario does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Large Non-Gaussianity Implication for Curvaton Scenario, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large Non-Gaussianity Implication for Curvaton Scenario will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-610772